The check engine light (service engine soon) comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on, too. To determine the cause, the vehicle will need to be taken to AutoZone or a shop that has an OBD2 scanner, or for 1995 and earlier models, an OBD1 scanner, While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area.
NO
No. The oil pressure sensor is not required for the engine to run.
On an interference engine the pistons can hit the valves. That will cause severe internal engine damage.
On an interference engine the pistons will hit the valves and cause severe internal engine damage.
No, but it can cause severe engine damage if you keep running the engine.
You use a scan tool after repairing the cause of the code.
It is possible.It is possible.
Yes, it is possible. It will also cause severe loss of power.
A flashing check engine light is due to a condition that is causing catalytic converter damage. Normal cause is a severe misfireA flashing check engine light is due to a condition that is causing catalytic converter damage. Normal cause is a severe misfire
You will cause severe engine wear.
The engine will overheat and can cause severe engine damage. The engine will be completely ruined if it is not immediately shut off.
On an interference engine it can cause severe engine damage. On a non-interference engine the engine may not start or run incorrectly.